8-Bit Drum

Knobsl Modular

Attiny85 based LO-FI drum module – please don’t expect clean sound it has “character”.
The module takes a trigger or short gate (indicator led doesn’t light up properly using triggers 😄)
and plays the sound that is selected via sample select and frequency select.
The pots are used for manual selection of parameters. When CV is used they are in attenuator mode.
The LP can be used to filter out some of the digital noise and to remove pop to any degree,
it plays nice with the gain stage that can be overdriven and clips at the rails.
It takes triggers up to audio frequency. HF!
All inputs take 0-5V readings and are protected agains overvoltage and reverse voltage.
Attention: when powering the case it may be a few seconds of glitching output until the buffer of the attiny settles and is usable.
Interface: sample select CV and pot, frequency CV and pot, trigger input, lpf pot, gain pot, output.

https://knopslmodular.design.blog/eurorack-modules/